If you’ve been following along at home, you know that Thompson’s son Prince is from a former relationship with Jordan Craig.

Well, now Prince is three years old, and he’s just as cute as can be. For evidence, we point you to proud dad Thompson’s latest Instagram post, in which he pays tribute to his son on that special day.

“Happy birthday to my baby boy Prince,” he captioned the sweet snap of the little guy holding a red balloon with a gleeful smile, clad in a holiday-appropriate sweater. “You’re already 3, I remember holding you when you were born and telling you how amazing of a baby you are.”

Thompson continued to gush about his son with pride and amazement. “Everyday you continue to surprise me with your development, your love and your big heart. Your smile is one that lights up every room you are in,” he wrote. “I thank God everyday for picking me to be your father. May God continue to bless you each and everyday son. I love you.”

While we’re not on board with a lot of Thompson’s behavior, we have to give him this: The man is always, always there with a timely birthday post. In June, he shared a birthday snap of ex Khloé calling her “the most beautiful human” and “an amazing mommy,” despite the fact that the two weren’t on the best of terms. And of course, he posted a photo for baby True’s birthday too — days after what Khloé describes as an “awkward” birthday party for their daughter.

The point is this: Thompson is by no means a model of perfect behavior, and we hope he’s as openly loving in person as he is in these captions. But if birthday posts are a way Thompson’s found to express how much he cares about his kids (and the mother of his kid), we’re here for it. And not just because both Prince and True are so, so cute.